| 摘要 |
PURPOSE:To obtain sufficiently strong reflected light even if the preceding moving car is inclined from a current moving car itself by fitting a light reflecting body formed like a band along the lateral direction of the car body and having a light reflecting face formed like a waveform in the vertical direction to the rear side face of the moving car automatically traveled along a moving car guiding line. CONSTITUTION:An obstruction sensor (SX) is arranged on the front end part of a moving car A. The sensor (SX) is constituted of a projector 4 for projecting infrared rays to the front side of traveling, a photodetector 5 for detecting the reflected light of the infrared rays and outputting an electric signal corresponding to the photodetecting level and a comparator 6 for detecting whether the photodetecting level is a set value or more. The light reflecting body B formed like a band along the lateral direction of the car body is fitted to the rear side face of the moving car A. Since the reflecting face (H) of the reflecting body B is formed like a waveform, light can be efficiently reflected to the moving car concerned even if the preceding moving car is inclined from the car itself. |
